How severe is CVE-2015-0209?

CVE-2015-0209 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2015-0209 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0209?

CVE-2015-0209 primarily affects Openssl. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-0209?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-0209 published?

CVE-2015-0209 was published on 2015-03-19 and last updated on 2026-06-17.

CVE-2015-0209

CVE-2015-0209 is a medium-severity vulnerability in Openssl with a CVSS 2.0 base score of 6.8. Its EPSS exploit-prediction score of 16% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 16% (97th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Openssl
Published: 2015-03-19
Last modified: 2026-06-17

Description

Use-after-free vulnerability in the d2i_ECPrivateKey function in crypto/ec/ec_asn1.c in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a might allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a malformed Elliptic Curve (EC) private-key file that is improperly handled during import.

Frequently asked questions

What is CVE-2015-0209?: Use-after-free vulnerability in the d2i_ECPrivateKey function in crypto/ec/ec_asn1.c in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a might allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a malformed Elliptic Curve (EC) private-key file that is improperly handled during import.
How severe is CVE-2015-0209?: CVE-2015-0209 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2015-0209 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0209?: CVE-2015-0209 primarily affects Openssl. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-0209?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-0209 published?: CVE-2015-0209 was published on 2015-03-19 and last updated on 2026-06-17.

References

Affected products (33)

cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0a:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0b:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0c:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0d:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0e:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0f:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0g:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0h:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0i:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0j:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0k:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0l:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0m:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0n:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0o:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0p:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.0q:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1a:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1b:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1c:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1d:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1e:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1f:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1g:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1h:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1i:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1j:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1k:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.1l:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:*

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All CVEs affecting Openssl →

Threat intelligence

Threat-intel indicators referencing this CVE:

218.4.91.163 (ipv4-addr)
200.77.172.159 (ipv4-addr)
200.196.50.91 (ipv4-addr)
166.62.41.190 (ipv4-addr)
50.62.22.47 (ipv4-addr)
222.99.52.202 (ipv4-addr)
191.101.33.225 (ipv4-addr)
121.164.135.251 (ipv4-addr)